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概述了氢的主要工业生产方法和实际应用,详细介绍了氯碱氢三级脱水工艺过程,并运用在线分析手段,准确显示了干燥过程中的氯碱氢水分含量变化规律。 相似文献
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本文介绍一种水电解氧的纯化系统,采用去除电解装置原料水溶解气体、催化反应除氧中氢、吸附脱水和低温分离除氢等分法制取高纯氧。可供读者参考。 相似文献
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ARIZ是TRIZ理论中专门用于解决复杂问题的方法,它集成了多个TRIZ方法及工具,设定了一套从问题分析到方案优选的系统性问题思考及解决流程.针对已有常用的污泥深度脱水处理设备在应用中出现的滤布难以清洗、易堵塞、易破损及脱水后污泥含水率仍较高等问题,利用ARIZ及知识库进行创造性的思考和解决,按照流程逐步实施ARIZ的9个关键步骤,分析问题模型,最终设计出一套创新设计方案——模组式污泥高效深度减量化处理装置.利用该装置可有效解决污泥深度脱水中存在的问题.研究的结果既验证了ARIZ方法解决复杂工程问题的有效性和实用性,也可为装置的详细设计和加工提供方案支持,并为开发新型高效的污泥深度脱水设备提供了一种方案. 相似文献
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概述用氯碱工业副产的氢气,经脱氯、脱氧、干燥、变压吸附和低温吸附分离技术,生产工业氢、纯氢、高纯氢和超纯氢,并对该工艺技术进行评述。 相似文献
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班铁兵 《中国新技术新产品》2014,(7):117-118
饱和水含量是评价天然气的一项重要技术指标。而且随着压力、温度变化,饱和含水量也发生变化。掌握气体饱和含水量及其变化规律有助于准确判断气体含水量,确定脱水深度;精确评价脱水装置运行效果,优化运行参数。 相似文献
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本文简介了我们研究,开发氯碱工业副产氢制取高纯氢时,所考虑的三种典型工艺流程,并对其进行了比较,以给大家以启示。 相似文献
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本报告介绍了对用于高强度低合金钢焊接的五种焊剂(烧结的和熔炼的)的脱水和吸水行为的研究。在150~450℃下进行了脱水行为的连续测量。采用备有连续称重装置的空调箱。只有在考虑到水的结合类型的情况下焊剂水分含量和焊缝金属中扩散氢含量之间才有明确的关系。 相似文献
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The morphology of synthetic garnierite, Ni3(OH)4. Si2O5, has been studied by electron microscopy. The layer structure of the hollow garnierite needles has been made visible and the observed layer distance is in accordance with the X-ray result. Synthetic garnierite, totally dehydrated above 500° C, appears to be pseudomorphous with garnierite. Total reduction of the dehydrated product in hydrogen yields porous nickel-on-silica in which the small nickel crystallites are only partly accessible to hydrogen chemisorption. 相似文献
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离子膜法氯碱工艺具有产品质量高、工艺简单、能耗低、环境友好等优点,目前已逐渐替代传统工艺。本文介绍了目前中国离子膜法氯碱生产技术的发展概况并展望了中国对该工艺的技术创新。 相似文献
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为了保证高纯度产品氢气的连续生产,氢气纯化装置的两个干燥塔需要定期切换干燥和再生工作状态。就如何实现氢气纯化装置的平稳切换,减少压力波动,保证产品指标的稳定,防止放空管出口燃爆现象的发生作了有益的探讨。 相似文献
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Two-dimensional (2D) correlation analysis was applied to characterize the attenuated total reflection (ATR) spectral intensity fluctuations of native cotton fibers with various water contents. Prior to 2D analysis, the spectra were leveled to zero at the peak intensity of 1800 cm(-1) and then were normalized at the peak intensity of 660 cm(-1) to subjectively correct the changes resulting from water diffusion in fibers and resultant density dilution. Next, a new spectral set was subjected to principal component analysis (PCA) and two clusters of hydrated (≥13.3%) and dehydrated (<13.3%) fibers were obtained. Synchronous and asynchronous 2D correlation spectra from individual ATR spectral sets enhanced spectral resolution and provided insights about water-content-dependent intensity variations not readily accessible from one-dimensional ATR spectra. The 2D results revealed remarkable differences corresponding to water loss between the hydrated and dehydrated fibers. Of interest were that: (1) the intensity of the 1640 cm(-1) water band remains in a steady state for hydrated fibers but decreases for dehydrated fibers; (2) during the desorption process of adsorbed water, small and water-soluble carbonyl species (i.e., esters, acids, carboxylates, and proteins) begin to accumulate on the cotton surface, resulting in possible changes in the coloration and surface chemistry of native cotton fibers that were rained on prior to harvesting; (3) intensities of bands in the 1200 to 950 cm(-1) region exhibit a more apparent intensity increase than those in the 1500 to 1200 cm(-1) region, indicating the sensitivity of the 1200 to 950 cm(-1) infrared (IR) region to intra- and inter-molecular hydrogen bonding in fiber celluloses; and (4) the 750 cm(-1) band, ascribed to the unstable I(α) phase in amorphous regions, might originate from the cellulose-water complex through hydrogen bonding. 相似文献